第17题: [单项选择]For nearly two hours I waited to buy a ticket for the con cert, only ______ that all tickets had been sold out. A. being told B. I was told C. to be told D. was told 参考答案:C 答案解析:[试题分析] “only+动词不定式”作结果状语的用法。
[详细解答] “only+动词不定式”作结果状语,常表示一种令人失望的结果。不定式中的动词很有限,常用的有learn, find,see,m
第18题: [单项选择]大剂量静滴去甲肾上腺素可引起() A. 心率减慢,血压升高 B. 心率增快,脉压增大 C. 收缩压、舒张压明显升高,脉压变小 D. 增加收缩压、脉压,舒张肾血管 E. 收缩压下降,舒张压上升 参考答案:C